1.5(b+2)+(2b-9)+(b+15)=90

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Solution for 1.5(b+2)+(2b-9)+(b+15)=90 equation: 



1.5(b+2)+(2b-9)+(b+15)=90

We move all terms to the left:

1.5(b+2)+(2b-9)+(b+15)-(90)=0

We multiply parentheses

1.5b+(2b-9)+(b+15)+3-90=0

We get rid of parentheses

1.5b+2b+b-9+15+3-90=0

We add all the numbers together, and all the variables

4.5b-81=0

We move all terms containing b to the left, all other terms to the right

4.5b=81

b=81/4.5

b=18

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